نتایج جستجو برای: lower bounds
تعداد نتایج: 741573 فیلتر نتایج به سال:
Journal:
:iranian journal of mathematical chemistry
0
r. rasi
azarbaijan shahid madani university, tabriz, iran s. m. sheikholeslami
azarbaijan shahid madani university, tabriz, iran a. behmaram
institute for research in fundamental sciences, tehran, iran
in this paper we give sharp upper bounds on the zagreb indices and characterize all trees achieving equality in these bounds. also, we give lower bound on first zagreb coindex of trees.
Journal:
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